A discrete extension of the Blaschke Rolling Ball Theorem

Details A discrete extension of the Blaschke Rolling Ball Theorem A discrete extension of the Blaschke Rolling Ball Theorem

2009-03-27

arxiv.org/abs/0903.4815v1

Mathematics

Differential Geometry

Scientific paper

The Rolling Ball Theorem asserts that given a convex body K in Euclidean space and having a smooth surface bd(K) with all principal curvatures not exceeding c>0 at all boundary points, K necessarily has the property that to each boundary point there exists a ball B_r of radius r=1/c, fully contained in K and touching bd(K) at the given boundary point from the inside of K. In the present work we prove a discrete analogue of the result on the plane. We consider a certain discrete condition on the curvature, namely that to any boundary points x,y with |x-y|

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